Lust CDA3000 - Page 324

Engineering Guide CDA3000
A-33
Appendix A Formula bank
DE
EN
1
2
3
4
5
6
7
A
Transversal forces
The expected transversal forces must be calculated in order to determine
the correct size of motor and gearing.
F
Q
=(M/r)
.
f
z
M Torque
r Radius
f
z
Supplement for radial force calculation
Tin 7290 kg/m³
Epoxy resin 1200 kg/m³
Rubber 920-990 kg/m³
Phenol resin, type 31 1400 kg/m³
Polyethylene 900-950 kg/m³
PVC 1300-1400 kg/m³
Transmission elements Comments Supplement fz
Cogwheels
≥
17 cogs
< 17 cogs
1
1.15
Chain wheels
≥
20 cogs
< 20 cogs
< 13 cogs
1
1.25
1.4
Narrow V-belt pulley dependent on pre-tension 1.5-2
Flat belt with tension roller dependent on pre-tension 2-2.5
Flat belt without tension
roller
dependent on pre-tension 2.3-3
Table 7.24 Transversal forces
Table 7.23 Density of various materials